AFA is owned by Arian Prevalla, the survivor of a deadly plane crash back in October, that killed his student Feras Freitekh. Prevalla said he fought and struggled with Freitekh before the crash. Officials called the crash intentional early on in the investigation.

On Wednesday, the National Transportation Safety Board spokesman said their final report of the deadly student crash was referred to the FBI.

Four incidents involving AFA have been reported since last October— including two deadly crashes, an emergency landing and a small crash with no injuries.